Stoneworking-machine.



H. H. MERCER. STONEWORKING MACHINE. APPLICATION r1150 JUNE 20, 1911.

Patented June 15, 1915.

3 SHEETSSHEET 1- Z7111 671150 7:- Henvyfllfercer M J5me Q. (5W

THE NORRIS PETERS CO.. PHOTO-LITHO.. WASHINGTON. D. C.

H. H. MERCER.

STONEWORKING MACHINE. APPLICATION FILED JUNE 20,1911.

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H. H. MERCER. STONEWORKING MACHINE.

I APPLICATION FILED JUNE 20, 1911. 1,142,975. Patented June 15, 1915.

3 SHEETS-SHEET 3.

THE NORRIS PETERS Ca, PHOTO-LITHO., WASHINGTON. D. Q

UNTTEZQ @TFS ATENT HENRY H. MERCER, 0F CLAREMONT, NEW HAMPSHIRE, ASSIGNOR, BY MESNE ASSIGN- MENTS, T6 SULLIVAN MACHINERY COMPANY, 033 BOSTON, MASSACHUSETTS, A

CORPORATION OF MASSACHUSETTS.

STONEWORKING-MACHINE.

Application filed June 20, 1911.

To all whom it may concern Be it known that I, HENRY H. MERGER, a citizen of the United States, and a resident of Claremont, county of Sullivan, State of New Hampshire, (whose post-office address is Claremont, New Hampshire,) have invented an Improvement in Stoneworking- Machines, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention relates to stone working machines and more particularly to machines of the channeling type, the object of the present invention being to provide a simple but efficient apparatus for making a channel cut.

While the invention, as to certain of its features, may have application to other types of channelers, as well as to other forms of stone working machines, ierein it is shown exemplified in an improved form of bar channeler.

The invention will be best understood by reference to the following description when taken in connection with the accompanying illustration of one specihc embodiment thereof, while its scope will be more particularly pointed out in the appended claims.

In the drawings: Figure l is a front elevation of a bar channeler embodying one form of the invention, the tool actuating engine and its sliding frame being removed for the sake of clearness. Fig. 2 is an end sectional elevation taken on the line 22 in Fig. 1 showing on an enlarged scale the tool carrier and its relationto the guiding and supporting frame. Fig. 3 is a sectional elevation on the line 33 in Fig. 1 showing the tool swinging member; and Fig. 4 is a rear elevation of the tool carrier shown in Fig. 2.

Referring to the drawings, I have there illustrated my invention by embodiment in a bar channeler, the guiding or supporting frame of which may be of common or any well known construction. Herein it is shown as comprising upper and lower guide bars 1 and 2 arranged in the same vertical plane and secured to end pieces 3 and 4 which latter, as is common in this form of apparatus, are each provided with a pair of supporting legs 5 and 6, respectively, the lat- Specification of Letters Patent.

Patented June 15, 1915.

Serial No. 634,291.

ter being adjustably secured to the end members and serving to sustain the entire machine.

The foregoing parts constitute an elongated guiding and supporting frame along which the tool carrier may be progressively moved, such carrier comprising a split frame having front and rear sections 7 and 8, respectively, clamped together by the bolts 9 and embracing the guide bars 1 and 2 so as to have a sliding fit thereon.

The machine illustrated is provided with a tool support in the form of a standard 10 mounted at the front of the carrier upon the cone-shaped bearing sleeve 11, which, in turn, passes through the split clamping bracket 12 depending from the bottom of the carrier. The bearing sleeve at its opposite end is threaded and engaged by the split clamping nut 13. It is thereby possible to tighten the nut 13 and to draw the tapered walls of the sleeve tightly in and against the bushing 14 in the standard and thereby clamp the standard fast or, for a purpose to be later described, to loosen the nut 13 and thereby free the standard on its cone bearing to permit its movement about the sleeve as a pivotal support.

The upper part of the standard is guided and supported by an arc-shaped segmental guide 15 having its center of curvature at the aXis of the sleeve 11, which guide is formed by or attached to the upper part of the carriage-section 7. A gib or plate 16 is bolted to the back of the standard and overlies said guide so that when the standard swings about its pivotal support its upper end is guided by the segment 15. hen required it may be rigidly clamped to the segment to hold its upper end fixed at the same time the nut 13 is tightened to clamp fast the lower end of the standard.

Any desired form or construction of channeling tool or motor may be employed, but herein there is illustrated a common form of air channeling engine 17 having rigidly secured thereto cross head guides 18, the two constituting a slidable frame adjustable lengthwise the standard as is customary through the medium of the feed screw 19, these parts being of the same general construction as is illustrated in prior Patents No. 555,633 to Ball; No. 927,&44- to section 8.

Ball; and No. 982,477 to Champagne. Herein a ratchet lever is represented for turning the feed screw, although, as in the case of the prior patents referred to, any suitable motor driven means for turning the feed screw may be utilized, it being obvious that the present invention is applicable to either a power or hand actuated feed. To the piston rod 21 of the engine is secured the cross head 22 adapted to slide in the cross head guides 13 and having attached thereto the percussive tool or tools 23 constituting the channeling gan 7 The described form of channeler may be employed to cut a channel groove in the ordinary manner, the cutting unit with its carrier being traversed the length of the frame by either hand or motor-actuated means. Herein to propel the carrier a motor 24 is employed mounted on a shelf 25 projecting from the rear of the carriage The motor 2% may be of any suitable type, a compressed air engine being herein shown having the driving shaft 26.

To propel the carriage suitable transmission mechanism is provided between the motor and a part of the supporting frame so that the carriage may be self-propelled thereon. The part of the supporting frame operatively related to the motor comprises a splined and threaded shaft 27 journaled in the end members 3 and 4, such shaft being adapted to be turned by the driving gear 28 (Fig. 4-), which latter is held between the arms 29 and 30 on the carriage and therefore travels with the latter lengthwise the frame. The gear 28 is driven by the pinion 31., the latter being on the same shaft with the gear which is driven by the pinion 33. The pinion 33 is on the same shaft with the gear 3% which meshes with the driving gear 35 on the driving shaft 26. The carriage is provided with a traveling nut 36 which engages the threaded shaft 27 so that as the latter is turned by the motor the carriage is self-propelled along the frame. The nut is formed in split sections as shown in Fig. 2, clamped in place by the cap piece 37 so that by removing the cap the nut may be withdrawn and the carriage held in fixed position on the frame by tightening up the bolts 9.

For cutting the ordinary channel groove the machine is operated in the usual way. That is to say, with the standard clamped fast either in upright or inclined position, the carriage is progressively fed along the frame by the motor 24: with the percussive tool in action, thereby making the usual channel cut. To cut the corner or that part of the channel underlying an overhanging quarry wall, or to cut the section of the channel near the end of the machine, or to use the machine where for any reason radial cutting is desired, the described form of machine may be operated in such manner as to cause the tool to sweep through the channel cut, the movement of the tool here-j 111 being aswinging movement along the arc of a circle. For this purpose there is pro vided a member 33 (Figs. 1 and 3) also consisting of front and rear sections clamped together so as to be guided along the guide bars 1 and 2 like the tool carriage but eX- traneous thereto and movable independently thereof. The member 38, which constitutes a tool swinging member, is also provided with a split nut 39 similar to the nut 36 upon the tool carriage so that with the nut in position the tool swinging member can be traversed back and forth along the frame by the feed screw and the motor. With the nut removed, however, the tool swinging member can be held infixed position on the frame. To the tool swinging member there is jointed at 40 a link ll connecting it to the standard the link being fastened between the lug 42 and the main body of the standard. hen, therefore, it is desired to accompany the percussive action of the tool with a swinging movement of the standard, thetool swinging member 38 with its nut operatively related to the feed screw 27 is caused to be moved lengthwise the guide bars by the motor on the carriage, which latter is maintained at a fixed position on the frame. Under such conditions the standard and the tool will be swung about the sleeve 11 as a pivot as, for example, from the upright position shown in Fig. l to a position indicated by the dotted line therein.

Suitable reversing means is provided such as the reversing lever 43 for the engine so that this swinging movement may be re versed and the tool caused to sweep through the channel groove during its reciprocatory percussive cutting movement with an amplitude of swing which may be of any required amount. Under such conditions the line or cut in the channel groove will be along the arc of a circle and the cutting action will be a radial cutting action in place of the relatively inefficient angular cutting action which ordinarily takes place when a machine of this type is required to cut at any considerable angle. 7

In the above described action of the machine the movement of the cutting edges of the tools is along the arc of a circle. By clamping the tool swinging member 38 fast to the frame and reciprocatively traversing the carriage back and forth, thestandard and its tool may be given a swinging movement as before but accompanied by an advancing and retracting movement of the tool and its carriage as a whole, the resultant movement of the tool edges being along a curved path flatter than the arc of a circle. When the carriage is traversed along the frame with the standard held fixed for cutting the ordinary channel groove, the link 41 may be disconnected and removed.

It will be obvious that the invention herein as to its broad features is not limited to embodiment in bar channelers merely or in bar channelers of the specific type herein shown.

It is to be further understood that the specific embodiment herein shown is submitted for illustrative purposes and that the invention is not limited to the details of construction herein shown nor to the herein illustrated application of the invention, nor to the specific form of machine to which the same is shown as applied, but that extensive deviations may be made therefrom without departing from the spirit of the invention.

Claims 1. In a channeling machine, the combination with a guiding or supporting frame comprising one or more guide bars, end members and supporting legs therefor, of a tool carriage comprising a frame adapted to be supported and guided by said guide bars, a standard pivotally mounted on said carriage, means to hold the standard fixed or free the same for movement about its pivotal support, a percussive cutting tool and engine connected to actuate the tool, a sliding frame on which the .tool and engine are carried, said frame being adjustable on the standard toward or from the work, feeding means to advance and retract the same, means for propelling the carriage comprising a motor carried thereby, a threaded shaft extending the length of the frame a traveling nut upon said carriage engaging the shaft, connections for driving said shaft from the motor, a tool swinging member movable independently of the carriage and mounted to move lengthwise the guide bars, means reciprocatively to move said member from the motor comprising a nut thereon engaging said threaded shaft and a connection between said member and the standard to swing the same during percussive movement of the tool.

2. In a channeling machine the combination with a guiding and supporting frame having guide bars and supporting legs, of a tool carriage thereon, a standard pivotally mounted on said carriage, means to hold the standard fixed or free the same for movement about its pivotal support, a percussive cutting tool with tool actuating means on said standard, a motor on the carriage for propelling the same, a tool swinging member movable independently of the carrier on the frame, connections for causing movement of said member by said motor and a connection between the member and the standard to swing the latter during percussive cutting action of the tool.

3. In a channeling machine the combination with a guiding and supporting frame, a tool carriage thereon, a tool support movably mounted on said carriage, a percussive cutting tool with tool actuating means on said support, means for propelling the carriage, a member movable independently of the carriage on said frame, a connection between said member and said tool support, and means for causing relative movement between said carriage and said member to move the tool support.

4. In a bar channeler the combination with a guiding and supporting frame comprising one or more guide bars, end members and supporting legs, of a carriage, a channeling tool mounted to swing on the carriage, a part on the frame between which and the tool there is a relative movement, and connections between said tool and said part independent of the carriage.

5. In a channeling machine the combination with a tool carrier, of a reciprocatory channeling tool mounted for swinging movement upon the carrier, a tool swinging member extraneous to the carrier, a connection between the tool swinging member and the tool, and means reciprocatively to move said tool swinging member to swing the tool while the latter is percussively cutting the stone.

6. In a channeler the combination with a tool, a support on which the tool is pivoted, a member movable independently of the support, a connection between said member and the tool, and means for moving said member.

7. In a channeler, the combination with a tool carrier, a channeling tool mounted to swing on said carrier, a member movable independently of the carrier, a link connecting the tool and said member and means to move said member reciprocatively.

8. In a channeler, the combination with a main support, of a standard movably mounted thereon, a reciprocatory percussive channeling tool mounted on the standard, a member movable independently of the main sup port, a connection between the standard and said member and means for moving said member to cause the tool to sweep through the channel cut during its reciprocatory percussive cutting movement.

9. In a channeler, the combination with a tool carrier of a tool support movably mounted thereon, a reciprocatory percussive channeling tool mounted on the support, amember movable independently of the carrier, a connection between the tool support and said member, a motor on said carrier and a power transmitting member between said motor and said movable member to move the latter and thereby cause movement of the tool.

10. In a bar channeler the combination with a supporting frame comprising one or more guide bars, end member and supportmg legs, of a tool carrier, a percussive cutting tool and tool actuating means on said carrier, a member on the frame, but extraneous to the carrier, a connection between said member and the tool and means for causingrelative movement between said member and the carrier.

11. In a bar channeler the combination with a guiding and supporting frame of a .with its actuating engine, means for propelling the carrier, a tool-swinging member movable on the frame independently of the carrier, and means connecting said standard and member to move said standard relatively to said carrier.

13. In a bar channeler, the combination with a guiding and supporting member com prising one or more guide bars, end members and supporting legs, of a tool carrier, a feed screw, a tool movably mounted on said carrier, means. to fix said tool upon said carrier when the latter is traversed by the feedscrew, and means including a tool-swinging member and a connection between said member and said tool to swing the tool with the carrier at rest.

14:. In a channeling machine, the combination with a guiding and supporting frame, of a tool-carrying member, an independ-. ently movable extraneous tool-moving member, means to move one of said members while holding the other member fixed, means to move said other member while holding the first-named member fixed, a tool carried by said tool-carrying member, and means to utilize such movement to impart a'feeding movement to the tool.

15. Ina channeling machine, the combination with a guiding and supporting frame, a tool carriage thereon, a tool support movably mounted on said carriage, a percussive tool with tool actuating means on said support, means for propelling the carriage, a member on said frame extraneous to said carriage, a connection between said member and said tool support, and means for causing relative movement between said carriage and said member to move the tool support.

16. In a channeling machine, the combination with a tool carrier of a reciprocatory channeling tool mounted for swinging movement upon the carrier, a tool swinging member extraneous to the carrier, a connection between the-tool swinging member and the tool, and means to impart a reclprocatory movement to. said tool swinging member to swing the tool while'the latter is percussively cutting the stone. r

17 In a channeler, the combination with atool, a support on which the tool is pivoted, a member extraneous to said support, a connection between said member and said tool, and means for imparting motion to said member. r

18. In a channeler, the combination with a tool carrier, a channeling tool mounted to swing on said carrier, a member extraneous to said carrier, a link connecting the tool and said member, and means to impart a reciprocatory motion to said member.

19. In a channeler, the combination with a main support, of a standard movably mounted thereon, a reciprocatory, percussive, channeling tool mounted on the standard, a member extraneous to said standard, a connection between said standard and said member, and means for imparting motion to said member to cause the tool to sweep through the channel cut during its reciprocatory cutting movement. 7

20. In a channeler, the combination with a tool carrier,- of a tool supporting member movably mounted thereon, a reciprocatory,

percussive,channeling tool mounted on said.

tool supporting member, a member extraneousto said tool supporting member, a connection between said members, a motor on said carrier, and power'transmitting means between said motor and said extraneous member to cause movement of the extraneous member.

21. In a bar channeler, the combination with a guiding and supporting frame,of a tool carrier, a feed screw for propelling said carrier, a tool movably mounted on said carrier, a member extraneous to the carrier also engaging said feed screw, and a connection between said member and said tool.

22. In a bar-channeler the combination with a guiding and supporting frame of a tool member thereon, an extraneous tool moving memfber also thereon, means to impart movement to said tool moving member, a tool pivoted on said tool carrying member, and means connecting said tool to said tool moving member for utilizing said movement to cause said tool to swing on its pivot.

23. In a bar channeler the combination with a guiding and supporting frame of a tool member thereon, an extraneous tool moving member also thereon, means to impart reciprocatory movement to said tool moving member, a tool pivoted on said tool carrying member and means connecting said tool to said tool moving member for utilizing said movement to cause said tool to oscillate on its pivot.

to move relatively to said tool carrying 10 member.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing Witnesses.

HENRY H. MERCER. Witnesses E. A. TRACY, E. J. BURCHARD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

